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| Series of all points continuing infinitely in opposite directions. |
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| Flat Surface with no thinkness |
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| accepted statement of fact |
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| Through any 2 points there is exactly 1 line. |
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| If two lines intersect then they intersect at exactly one point. |
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| If two planes intersect, then they intersect at exactly 1 line. |
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| Through any three noncolinear points there is exactly one plane. |
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| series of all points continuing in opposite directions between two inclusive end points |
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| series of all points continuing in opposite directions from one inclusive endpoint |
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| colinear rays with a common endpoint (can create an angle) |
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| coplanar lines that will never intersect |
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| P1-6 Segment Addition Postulate |
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| If three points A,B,C are colinear and B is between A and C then AB + BC = AC. |
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| point that divides a segment into two congruent segments |
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| Point, Line, Segment or a ray that divides a segment into two congruent segments. |
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formed by two rays with the same endpoint
e.g. opposite rays form an angle |
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common endpoint
e.g. you can name an angle by its vertex only when no other angles are present |
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| an angles whose measure is 90>x>0 |
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| an angle whose measure is 90 |
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| an angle whose measure is 90 |
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| an angle whose measure is 180 degrees |
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| P1-7 Protractor postulate |
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| similar to ruler postulate |
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| P1-8 AAP Angle Addition Postulate |
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| If B is in the interior of Angle AOC then measure AOB plus m |
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| Perpendicular Bisector (of a segment) |
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| a line, segment, or ray that is perpendicular to a segment at its midpoint |
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| two lines that intersect to form right angles |
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| ray that divides an angle into two congruent, coplanar angles and has its endpoint at the vertex |
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| If two figures are congruent then they have equal areas |
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| The area of a figure is equal to the sum of the area of its non overlapping parts |
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